Elias a



(No Model.)

E. A. lJUKESI AUTOMATIC GUT-OPP FOR GAS BURNERS.

Patented Apr. 27, 1886.

I uren-07e UNITED STATES PATENT OEEicE.

ELIAS A. JUIIES, OF ST. OATHARINES, ASSIGNOR OF ONE-HALF TO ARTHUR JUKESJOHNSON, OF TORONTO, ONTARIO, CANADA.

AUTOMATIC CUT-OFF FOR GAS-BURNERS.

SPECIFICATION forming part of Letters Patent No. 340,951, dated April27, 1886.

Application filed July 3, 1885. Serial No. 170,608.

To all whom t may concern:

Be it known that I, ELIAS ARTHUR JUKEs, of the city of St. Catharines,in the county of Lincoln, in the Province of Ontario, Canada, haveinvented an Improved Cut-Off for Gas- Burners, of which the following isa specitlcation.

The object ofthe invention is to design an automatic cut-off forgas-burners which,while operated by the gas-jet, will not in any wayatfect the appearance of the flame; and it consists, essentially, of ametal tube placed parallel with and sufficiently close to the burnerthat the heat from the gas-jet will act directly upon the tube, causingthe same to expand and actuate a pivoted lever arranged to come incontact with a notch or projection formed on a cut-oft valve or itsattachment, so that when the light is extinguished the valve is closedby the lever upon the cooling and consequent contraction of the metaltube.

Figure lis an enlarged sectional view showing a gas-burner provided withmy improved automatic cut-oli. Fig. 2 is a perspective outside view ofthe same on a reduced scale. Fig. 3 is a perspective view of cut-offvalve.

The primary object of all cut-offs for gasburners is to so arrange theparts that upon the iiame being extinguished a valve shall be closed bythe contraction of the parts previously expanded by the heat ofthe dame;but in all such automatic cutoft' valves with which I am familiar thepart to be acted upon by the llame is carried through the said iiame,which is thereby caused to burn unevenly or horizontally above theburner, which is quite as objectionable, to remedy which `defect is theprimary object of my invention, while at the same time I secure anautomatic cut off simpler in construction and more effective inoperation than any other with which I am familiar.

In the drawings like letters of reference indicate corresponding partsin each figure.

A is the burner proper, which I provide, preferably, with two inlets, aand b, so that the burner may be either attached to a vertical orhorizontal pipe. It will of course be understood that the inlet not usedwill be plugged.

(No model.)

On one side of the burner A, I form a projection, d, in which I support,as indicated, a metal tube, B. From the upper end of this tube B a metalpendant, C, extends to a point opposite to the collar D, which is Xed tothe burner A, as indicated. A lug, c, projects from the collar D throughaslotted passageway in the tube B, forming a pivot-support for the leverE, contained within the tube B,` as indicated. This lever E is alsopivoted, as 6o indicated, on the end of the pendant C.

F is a cylindrical cut-od valve passing through the burner A, and havingan aperture,

f, through it to correspond with the passageway g through the burner.`It is of course intended that this valve F shall be packed or otherwisemade gas-tight; but at the same time it is intended to move freelylongitudinally through the burner.

In order to prevent the valve F revolving, 7o and thereby alter theposition of its aperture f, I provide a pin, h, fixed at one end to theburner and passing through a slot, t', made in the cut-off valve F.

I-I is a trip or handle pivoted to the end of the valve F, and having anotch,j, made on its top side.

I is a spring arranged to come in contact with a pin or projectionconnected to the cutofi' valve F. The spring I is arranged to 8o pressthe valve F in the direction indicated by arrow, so that when nototherwise acted upon the valve F will be held as indicated in Fig. l, sothat its aperturef shall be immediately in the passageway y.

It will of course be necessary to provide a suitable stop to prevent thespring carrying the valve too far in the direction indicated. This stopmay be in the form of a piu, k, or other suitable means lmight easily bedevised. 9o

As Fig. l represents the burner lighted, it of course follows that thetube B is expanded, and consequently,as the lever E is pivoted on theend ofthe pendant G, which is moved upwardly by the expansion of thetube B, and 9 5 is also pivoted on the lug E, secured to the burner A bythe collar D,Which is not moved by the expansion of the tube B, thelever E is carried from its initial position, indicated by dotted lines,into the position it is shown Ico by full lines, where its end fitsbehind the notch j, the trip H being actuated upwardly1 as well asoutwardly by the spring I.

Should the flame from the burner A be blown or otherwise accidentallyput out, the tube B will naturally contract kas it cools. Consequentlythe lever E will be pushed back into its initial position, carrying withit the valve F, thereby closing the passage-way g and ei'fectnallycutting off the gas from the burner, should it not have been previouslyturned off by the ordinary gas-cock.

As the spring I is, as before stated, designed to hold the trip Hupwardly,and thereby keep the notch jin contact with the end of theleverE, it follows that so long as the trip H is not touched the valve F willbe hold closed by the lever .E and no gas will escape, nor can theburner be lighted until the triprH is pressed down so as to clear itsnotch j from the end of the lever E, when the action of the spring Iwill cause the valve to move back in the direction indicated by arrowuntil the aperturef comes opposite to the passageway g.

In order to insure the immediate and rapid expansion of the tube B,I'provide asma-lljet, m,which will of course light with the burner,

' and by acting directly on the tube B, as indicated, will materiallyassist in its expansion, which assistance will be of considerableadvantage should the burner when lighted be turned down so low as not toproduce sufficientheat for the rapid expansion of the tube B.

The drawings represent the burner A and tube B contained within acasing, J. This casing is not necessary for the satisfactory working ofmy automatic cut-oft', but as it might be ornamented and the tube andburner arranged within it so as to gi ve the appearance merely of asingle burner, it is to that extent important.

Vhat I claim as my invention is- 1. The combination,with the burner A,of a tube, B, supported substantially parallel with and in proximitythereto, the cutoff valve F, and lever E, pivoted to the burnerconnected with said tube B and engaging with said cutoff valve,wherebythe contraction of the tube B will actuate said valve to cut off thesupply of gas to the burner, substantially as specified.

2. A burner, A, and a tube, B, supported substantially parallel with andin proximity to the burner A, a pendant, C, attached to the tube B andforming a support for the pivot connecting it to the lever E, incombination with said lever, the lng e, attached lto the burner A andforming a support for the pivot connecting it to the lever E, and acut-off valve connected u ith said lever, substantially as and for thepurpose specified.

3. A burner, A, and a tube, B, supported substantially parallel with andin. proximity to the burner A, a lever, E, provided with two pivots, oneconnecting it to the tube B and the other to the burner A, incombination with a cut-off valve, F, situated as specilied and provi edwith a notch or projection to connect it with the lever E, substantiallyas and for the purpose specified.

4. A burner having passage-way g, and a cock-passage at right anglesthereto, a cnt-off valve arranged in said cook-passage and provided withan aperture, f, to correspond with the passage-way g, and a slot, i, toform a passage-way, Iand the pin h, in combination with the tube B, aspring, I, arranged to actuate the cut off valve F, the lever E, trip H,and intermediate connections, substantially as described, between saidtube, lever, and burner, said valve being also provided with a stop forlimiting the movement thereof, substantially as and for the purposespecified.

5. The combination, with a gas pipe and burner, of a cut-off valve, thetube B, lever E, a trip, I-I, pivoted to said valve and provided withanotch, j, intermediate connections, substantially as described, betweensaid tube, lever, and burner, and a spring, I, arranged to actuate thevalve F outwardly and the trip H upwardly, substantially as and for thepurposes specified.

6. A burner, A. a tube, B, supported sub stantially parallel with and inproximity thereto, a cut-off valve, F, the lever E, pivoted to theburner connected with tube B and engaging with said cut-off valve,combined with the jet-tube m,extending from the burner adjacent to theflame thereof, and outside of and in close proximity to said tube,substantially as and for the purpose specified.

Toronto, June 26, 1885.

n. A. JiiKns.

In presence of- CHARLES C. BALDWIN, F. B. FETHERSTONHAUGH.

